A method for optimum utilization of a queue for calls is provided in a telecommunication system and is controlled by an application, as well as an appropriate telecommunication system. Each call that is in the queue has a particular queue property and can be assigned to an agent, to a two-way announcement that is played by an announcement memory and that is capable of interaction with a call, or to remain in the queue. The method is distinguished in that a call assigned to a two-way announcement is allocated a parameter that causes the queue property of the call to be retained.